Construction of buildings.



F BURCHABTZ. CONSTRUCHON OF BUILDINGS.

v APPLICATION FILED JAN. 12. I911.

Patented Aug. 10, 1915.

FERDINAND BURCHARTZ, OF NEW YOBK, N. Y.

CONSTRUCTION OF BUILDINGS.

Specification of Letters Patent.

Patented Aug. 10, 1915.

Application filed January 12, 1911. Serial No. 802,296.

To all whom it may concern:

Be it known that I, FERDINAND Bonan- ARTZ, acitizen of the United States, and

resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in the Construction of Buildings, of which the following is a specification.

My present invention relates to the con struction of buildings and particularly to floors and ceilings comprising blocks and reinforcing wires, and has for its object to provide a simple, strong and inexpensive construction of the character indicated above.

In. Letters Patent of the United States No. 875318, granted to me on December 31, 1907, I have disclosed a building block made of two sections having open sides and set together so that the open sides meet, the joined sections thus forming a block having closed walls.

My present invention relates to a particular way of arranging sectional blocks in a floor or the like, the joints extending in different directions in the several blocks, thus securing a stronger construction.

Reference is to be had to the accompanying drawings, in which- Figure 1 is a plan of an unfinished floor containing blocks laid according to my invention; Fig. 2 is a perspective view showing two block sections, with open ends, as they come from the press; Fig. 3 is a vertical section of one of these sections, placed on a suitable support for the purpose of closing one end by a layer of cement or the like; Fig. it is a perspective view of the block section resulting from the treatment illus trated by hi 1r, ma mlh'iw block sections of uni torn: c we section such as can be ]')l'0lll(3l by nhessing concrete or other suit-able plastic material through a die and cutting the resulting tube or bar at regular intervals,in a manner now wcll-knowu in-the art. One form of block sections of this character is shown- I the other.

tions open at both ends, I place them with one of the open ends on a suitable smooth supporting surface, such as a horizontal wooden board I) (see Fig: 3), and with a trowel or other convenient tool I fill into the cavity of the block section, a sufiicient amount of cement or other suitable plastic adhesive material to form a continuous layer E at the bottom of said cavity, flush with the edges of the top A, of the bottom B and of the side walls C which are in engagement with the support D. No particular care is required in applying this layer E, since its bottom surface will become smooth by contact with the board D, while its top surface or inner surface may be quite uneven or rough, as shown in Fig. 3. Preferably the 'filling E is made of the same composition as the body of the block, or of a similar composition, in which the case the joints at the edges of the filling will be invisible, so that its outer surface will appear to be continuous with the edges of the walls A, B, C, and of the flanges B, as shown in Fig. 4. The block sections thus obtained are closed at one end and open at the opposite end. They may be utilized in various ways for constructing walls, floors, or ceilings of buildings. I prefer to set two such sections to-v gether with their open ends in contact, thus forming hollow square blocks whose walls are imperforate, that is to say, the cavity within such blocks is closed *entirely. In

' Fig. 1, a series of such blocks are shown, the' letter a indicating the joints formed by the abutting open ends of two block sections. In order that two sections may form together a square block, as shown, each of the sections should have the shape of a rectangle one side of which is twice as long as The blocks are then laid in the manner shown in Fig. 1, with the joints a being placed alternately (in each row and in each column) in two positions one at a right angle to the other. The flanges B of each block abut against the closed end wall E of an adjacent block and form channels running at right angles between the rows of blocks, the bottoms of these channels being closed by said flanges between the sides of the blocks and open between the corners thereof. The customary reinforcing rods F and F are then placed in said channels or grooves above the flanges B, and the floor is completed in theusual manner by filling the voids with cement or the like (not shown) in which said rods become embedded. The cement fills the open corner spaces between the'flanges of the blocks.

The floor thus-laid comprising rectangular blocks spaced apart and disposed in checkerboard fashion with the reinforced cement fillings in the channels running at right angles between the blocks,'constitutes a strong substantial and durable floor.

' Various modifications may be made with-- out departing from the nature of my invention as set forth in the appended claims.

I claim: a V I, A floor or the like comprising rectangnlar blocks spaced apart and disposed.

in checkerboard fashion, said blocks havin respectively two opposite flanged sides an beingdisposed with the flanges of alternative blocks running at right angles-to the flanges of intermediate blocks, the flanges of one block abuttin the plain. sides of adj acent blocks and 'orming channels running at right angles between the rows'of blocks,

1 the bottoms of said channels being closed by .said flanges between the sides of the blocks and open between the corners thereof, reinforcing rods disposed in sald channels and crossing one another at sald open corners,

and cement fillings in said channels and opencorners and surrounding said rods.

2. A floor or the like comprising rectangular blocks spaced apart and disposedv in checkerboard fashion, said blocks being composed of hollow sections assembled in pairs and open at their meeting ends, said blocks having respectively two opposite plain sides and two opposite flanged sides In testimony whereof, I have signed this specification in the mg witnesses.

' FERDINAND'BUROHARTZ.

Witnesses: I

JoHNLo'rKA,

CHARLES (JrATI-IE. .7

presence of two subscrib- 

